C81-8-987

View detailed technical data, stock status, and sourcing information for: C81-8-987
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-059-3507

Item Name Code

06665

Assigment Date

01/01/1961 (65 years ago)

An externally threaded fastener bent approximately 180 degrees (3.141 radians) in the shape of the letter u and with both ends threaded.

3.880 inches nominal distance from inside center of bend to bolt end, 0.880 inches minimum thread length, 2a thread class, right-hand thread direction, 2.985 inches minimum and 3.015 inches maximum inside distance between shanks

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.880 inches minimum
Distance From Inside Center Of Bend To Bolt End: 3.880 inches nominal
Inside Distance Between Shanks: 2.985 inches minimum and 3.015 inches maximum
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Special Features: olive drab
Material: steel comp 1010 or steel comp 1025 overall
Surface Treatment: paint overall
Style Designator: round bend
Thread Series Designator: unc

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
C81-8-987	U Bolt

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5306-00-059-3507?

The FSCG of the NSN 5306-00-059-3507 is 5306

Does the NSN 5306-00-059-3507 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-059-3507 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5306-00-059-3507 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-059-3507 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5306-00-059-3507 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961